Analysis of Solvability Boundary for Droop-Controlled Microgrids

被引：16

作者：

Wang, Chong ^{[1
]}

Cui, Bai ^{[2
]}

Wang, Zhaoyu ^{[3
]}

机构：

[1] Hohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R China

[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

[3] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2018年 / 33卷 / 05期

基金：

美国国家科学基金会;

关键词：

Droop-controlled microgrids; AC inverters; power flow solvability; sufficient condition;

D O I：

10.1109/TPWRS.2018.2849878

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The wide-spread integration of renewable energy sources has a great impact on the traditional distribution system. Considering many of these sources are connected to synchronous alternating current (ac) grids via ac inverters with droop controllers, an equivalent model that has a fictitious voltage source with a given voltage phasor is used to represent the ac inverter with droop controllers. With the equivalent model, a sufficient condition based on bus voltage/injected power and system admittance is proposed to analyze the system stress level and distance to solvability boundary of power flow equations. A modified IEEE 123-bus system is used to test the proposed model and the method.

引用

页码：5799 / 5802

页数：4

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